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BIOCHEM 785 2ndOA (1)Questions and ANSWERS Rationale BEST EXAM SOLUTION GUARANTEED SUCCESS, Exams of Nursing

A set of multiple-choice questions and answers related to biochemistry. The questions cover topics such as PCR reaction components, eicosanoids, gene expression, and amino acid sequences. updated for the academic year 2022/2023 and is rated A+.

Typology: Exams

2022/2023

Available from 07/13/2023

HESIEXPERT01
HESIEXPERT01 🇺🇸

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BIOCHEM 785 2ndOA (1)Questions and

ANSWERS Rationale BEST EXAM

SOLUTION GUARANTEED SUCCESS

LATEST UPDATE 2022/2023 RATED A+

 Whichofthefollowingarethecorrectcomponentsfora PCRreaction?* 1/ dNTPs,Primer,RNAPolymerase,templat eRNAdNTPs,Primer,DNAPolymerase,te mplateDNA ATP,Primer,mRNApolymerase;templatemRNA

BIOCHEM 785 2ndOA (1)Questions and ANSWERS

Rationale BEST EXAM SOLUTION GUARANTEED

BIOCHEM 785 2ndOA (1)Questions and

ANSWERS Rationale BEST EXAM

SOLUTION GUARANTEED SUCCESS

LATEST UPDATE 2022/2023 RATED A+

AcetylCoA, RNAprimer, DNALigase,Template phosphate Feedback Thecorrect answerisb  Whattypeofbondishighlightedinpurplebelow:* 1/ Cis

BIOCHEM 785 2ndOA (1)Questions and ANSWERS

Rationale BEST EXAM SOLUTION GUARANTEED

Rationale BEST EXAM SOLUTION GUARANTEED

SUCCESS LATEST UPDATE 2022/2023 RATED A+

TransE ssenti alOme ga- Feedback Thecorrect answerisacisbond,theHydrogensareonthesamesideofthedoublebond  Howmany roundsofbetaoxidationarerequiredtobreakdownthefollo wingfatty acid?* 0/ 10 9 19 20

BIOCHEM 785 2ndOA (1)Questions and ANSWERS

Rationale BEST EXAM SOLUTION GUARANTEED

Rationale BEST EXAM SOLUTION GUARANTEED

SUCCESS LATEST UPDATE 2022/2023 RATED A+

Correctanswer 9 Feedback Thecorrect answerisB:920carbons/2=10-1fortheround=  Individuals with long-chain 3-hydroxyacyl-CoA dehydrogenase(LCHAD)deficiencyareunabletobreakdown long-chainfattyacids.Whichofthe followingistruefor thesepatients?* 1/ Duringfasting,theseindividualswillproduceexcessiveamount sofketonebodies. Theyshouldavoidintakeofcarbohydratesandinsteadfocuso nahigh-fatdiet. Theyshouldensurethattheyeatfrequentlysothattheirbodyha sadequatesuppliesofglucose. TheywillbreakdownCH3(CH2)8CH=CH(CH2)10COOHwithout aproblem.  Newborns are tested for a variety of metabolic

BIOCHEM 785 2ndOA (1)Questions and ANSWERS

Rationale BEST EXAM SOLUTION GUARANTEED

Rationale BEST EXAM SOLUTION GUARANTEED

SUCCESS LATEST UPDATE 2022/2023 RATED A+

disorders includingFamilialLipoproteinLipaseDeficiency,whichisadis easeinwhichthegene that codes for Lipase is deficient. Lipase is the enzyme thatbreaks down triglycerides. Which of the following would be true for anindividualwithFamilialLipoproteinLipaseDeficiency?* 1/ Triglyceridescouldnotbebrokendowntoreleasefattyacidsf orbeta-oxidation. Triglyceridescouldnotbebrokendowntoreleaseglucoseinres ponsetoglucagonsignaling. Gluconeogenesiscouldnotoccurandglucosewouldhavetobet akeninfromtheindividual'sdiet. Aminoacidscouldnotbebrokendowntoacetyl- CoAwhichdecreaseATPformedbytheelectron transportchain.  ThepedigreebelowtracksDuchenneMuscularDystrophy (DMD)through several generations. What type of inheritance does DMDexpress?*

BIOCHEM 785 2ndOA (1)Questions and ANSWERS

Rationale BEST EXAM SOLUTION GUARANTEED

Rationale BEST EXAM SOLUTION GUARANTEED

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0/

Autosomal dominantAutos omalrecessive X-linked DominantX- Linkedrecessiv

BIOCHEM 785 2ndOA (1)Questions and ANSWERS

Rationale BEST EXAM SOLUTION GUARANTEED

Rationale BEST EXAM SOLUTION GUARANTEED

SUCCESS LATEST UPDATE 2022/2023 RATED A+

e Correctanswer X-Linkedrecessive Feedback Thecorrectanswerisx-linkedrecessivebecauseparentsdonothaveit(II-5-6)butachilddoesIII-  Whatisthecomplementarysequenceto3’ATG CGAATA5’?* 1/ 3’TATTCGCAT5’ 3’TACGCTTAT 5’ 3’GATAGCATA5’ 5’ATAAGCGTA3’ Feedback The correct answer is 3' TAT TCG CAT 5'. Remember complementary means “Matching or Pairing”Youhavetoremembertopayattentiontoyournumbersaswellasyourletters(A-T,G-C,5'- 3').Thecorrectansweris 3’ATGCGA ATA5’(originalsequence) 5’TACGCTTAT3’(complementarysequence) Butweaskedfor itinthe3’direction, somirroranswer togivecorrectanswer:3’TATTCGCAT 5’  Eicosanoidsarederivedfromessentialfattyacidsandcan actashormones. Which of the following structures could represent theprecursortoaneicosanoid?*

BIOCHEM 785 2ndOA (1)Questions and ANSWERS

Rationale BEST EXAM SOLUTION GUARANTEED

Rationale BEST EXAM SOLUTION GUARANTEED

SUCCESS LATEST UPDATE 2022/2023 RATED A+

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Option

BIOCHEM 785 2ndOA (1)Questions and ANSWERS

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Rationale BEST EXAM SOLUTION GUARANTEED

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Option Option

BIOCHEM 785 2ndOA (1)Questions and ANSWERS

Rationale BEST EXAM SOLUTION GUARANTEED

Rationale BEST EXAM SOLUTION GUARANTEED

SUCCESS LATEST UPDATE 2022/2023 RATED A+

Option Feedback The correct answer is Option 1, arachidonic acid, which is made from essential fatty acids.Arachidonicacidisbestrecognizedbyitscharacteristic"hairpin"andpolyunsaturatedstructure.  WhichaminoacidsequencewouldresultfromthisCoding DNAstrand?3’ATGCAGATA5’?*

BIOCHEM 785 2ndOA (1)Questions and ANSWERS

Rationale BEST EXAM SOLUTION GUARANTEED

Rationale BEST EXAM SOLUTION GUARANTEED

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1/

Tyr Val TyrIle Gln IleIleAs pVal

BIOCHEM 785 2ndOA (1)Questions and ANSWERS

Rationale BEST EXAM SOLUTION GUARANTEED

Rationale BEST EXAM SOLUTION GUARANTEED

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LeuHisLys Feedback ThecorrectanswerisIleAspVal.Wearestartingatthecodingstrand,andhavetoremembertherelationship between coding DNA and mRNA. These two strands are non-complementary andparallel.Sowecopythecoding strand,changeT --->U,andthenwritethemRNAsequence: 3’ATGCAGATA5’coding 3’AUGCAGAUA5’mRNA Mirror by changing orientation: 5’ AUA GAC GUA 3’ReadchartIleAspVal(chartisindirectionof5'--->3') Whichaminoacidsequencewouldbemadefromthistempl ateDNAstrand?5’TATTACCGA3’? * 0/

BIOCHEM 785 2ndOA (1)Questions and ANSWERS

Rationale BEST EXAM SOLUTION GUARANTEED

Rationale BEST EXAM SOLUTION GUARANTEED

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TyrTyrArg Ile Met AlaSer Val IleSerHi

BIOCHEM 785 2ndOA (1)Questions and ANSWERS

Rationale BEST EXAM SOLUTION GUARANTEED

Rationale BEST EXAM SOLUTION GUARANTEED

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sGln Correctanswer SerValIle Feedback Thecorrect answerisCbecause 5’TATTAC CGA3’template iscomplementaryandantiparallelso3’AUAAUGGCU5’butitisinthewron gorientation,somirror 5’UCGGUAAUA3’andread the  Rettsyndromeisabraindisorderthatoccursalmostexclusi velyinfemales,causingseveredeficitsinlanguage,learning,c oordination andotherbrainfunctions.DecreasedexpressionoftheMECP genecauses Rett syndrome. Which of the following scenarios correctlydescribeshowRettsyndromecouldbedeveloped?* 1/ ADNA-bindingproteinblocks RNAPolymerasefrombindingtothepromotersequence,facilit atingthetranscriptionoftheMECP2gene. Transcriptionfactorsareunabletobindtothetranscriptionsta

BIOCHEM 785 2ndOA (1)Questions and ANSWERS

Rationale BEST EXAM SOLUTION GUARANTEED

Rationale BEST EXAM SOLUTION GUARANTEED

SUCCESS LATEST UPDATE 2022/2023 RATED A+

rtsiteoftheMECP2genebecausenucleosomesaretightlypack edtogether. Transcriptionactivatorscausenucleosomestoseparate,expos ingtheMECP2gene. RNAPolymerasebinds totheMECP2geneandbeginstranslation. Feedback The answer is B. Gene expression is increased when nucleosomes are widely spaced andtranscriptionfactorsandRNAPolymeraseareabletobindtothetranscriptionstartsiteofthegene.  Whichofthefollowingstrandsarecomplementaryan danti-parallel?* 1/ Coding and Non- templateTemplatea ndmRNA Coding and mRNATemplat eandtRNA

BIOCHEM 785 2ndOA (1)Questions and ANSWERS

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Feedback Thecorrect answerisD

Rationale BEST EXAM SOLUTION GUARANTEED

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Feedback ThecorrectanswerisB.ThetemplateandmRNAstrandsarecomplementarytoeachother.  WhatisthecorrectorderoftheCentralDogma?* 1/ Translation,Replication,Tran scriptionTranscription,Repli cation,TranslationTranslatio n, Transcription, ReplicationReplication,Tran scription,Translation  Whathappenswhentheincorrectbaseisaddeddurin gthesynthesisof aDNAstrand inDNAreplication?*

BIOCHEM 785 2ndOA (1)Questions and ANSWERS

Rationale BEST EXAM SOLUTION GUARANTEED

Rationale BEST EXAM SOLUTION GUARANTEED

SUCCESS LATEST UPDATE 2022/2023 RATED A+

1/

Thehomologouschromosomeisusedtoreplacetheincorrectlya ddedbasewiththe correctone. DNAPolymeraseremoves theincorrectbaseandaddsinthecorrectbase. Thyminedimersoccur. DistortionofthedoublehelixoccursandisrepairedbyRNAPoly merase. Feedback ThecorrectanswerisB.DNAPolymeraserepairsmismatcherrorsthatoccurduringDNAreplication.  Whatisthecorrectdefinitionofnucleotideexcisionrepair?* 1/ Removalofasingledamagednucleotide Damagetoafeworseveralnucleotidesareidentified,thenmany nucleotidesareremovedandall arereplacedto repairtheDNAsegment RequiredwhentherearebreaksinthedoublestrandedDNAstra

BIOCHEM 785 2ndOA (1)Questions and ANSWERS

Rationale BEST EXAM SOLUTION GUARANTEED

Rationale BEST EXAM SOLUTION GUARANTEED

SUCCESS LATEST UPDATE 2022/2023 RATED A+

ndwhichcauses discontinuityinboth strands Insertionofathyminedimer Feedback ThecorrectanswerisB,severalnucleotidesareremovedwhereinBERasinglenucleotideisremoved  Whattypeofinteractionswouldbeaffectedinapatien twithdiabeticketoacidosis?(selectallthatapply)* 0/ Hydrogenbonds Ionicbonds Hydrophobicinteractions Disulfidebonds Correctanswer Hydrogen bondsIonic bonds Feedback  Onahotsummer'sday,Iwascleaningmygarage.MycatSop hiewasoutwithme,andgotinto abottlecontainingastrongreducing

BIOCHEM 785 2ndOA (1)Questions and ANSWERS

Rationale BEST EXAM SOLUTION GUARANTEED

Rationale BEST EXAM SOLUTION GUARANTEED

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agent. Of course I took her straight to the vet. What type of amino acidbondswouldbedisruptedbyexposuretothestrongreduci ngagent?* 1/ Hydrophobic interactionsHydro gen bondsDisulfidebon ds Ionicbonds Feedback Thecorrectanswerarecovalent(disulfide)bonds C  Whattypeofbondcantheaminoacidsbelowformtostabiliz e thetertiarystructureof aprotein?* 1/

BIOCHEM 785 2ndOA (1)Questions and ANSWERS

Rationale BEST EXAM SOLUTION GUARANTEED

Rationale BEST EXAM SOLUTION GUARANTEED

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IonicbondHydrop hobic interactionHydro genbond

BIOCHEM 785 2ndOA (1)Questions and ANSWERS

Rationale BEST EXAM SOLUTION GUARANTEED

Rationale BEST EXAM SOLUTION GUARANTEED

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Disulfidebond Feedback ThecorrectanswerishydrogenbondsC

BIOCHEM 785 2ndOA (1)Questions and ANSWERS

Rationale BEST EXAM SOLUTION GUARANTEED

Rationale BEST EXAM SOLUTION GUARANTEED

SUCCESS LATEST UPDATE 2022/2023 RATED A+

 Whattypeofreactionformstheprimarystructureofaprotein ?* 1/1 Activationen ergyEnzyme sDehydratio n Hydrolysis Feedback ThecorrectanswerisadehydrationreactionC  Myoglobinisanoxygenstorageproteinandexhibitsahyp erboliccurve in an oxygen saturation graph. What is the highest level ofprotein structureexhibitedby myoglobin?* 1/1 Primary Second aryTerti

BIOCHEM 785 2ndOA (1)Questions and ANSWERS

Rationale BEST EXAM SOLUTION GUARANTEED

Rationale BEST EXAM SOLUTION GUARANTEED

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ary Quaternary Feedback Tertiary,myoglobinisasinglesubunitproteinC  Whatlevelofproteinstructureinvolvesalphahelicesan dbetapleatedsheets?* 1/1 Primary Second ary Tertiary Quatern ary Feedback Secondary levelhasalphahelicesandbetapleatedsheetsB  Hydrogenbondsbetweenbackbonegroupsstabilizewhatl evelofprotein structure?*

BIOCHEM 785 2ndOA (1)Questions and ANSWERS

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Rationale BEST EXAM SOLUTION GUARANTEED

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Primary Second aryTerti aryQuat ernary Feedback Secondary structure B is the correct answer. Primary and secondary structures involve interactionsbetweenthebackbones,tertiaryandquaternarystructuresinvolveinteractionsbetweenthevari ablegroups  Whichofthefollowingistrueaboutproteinstructu reandfunction?* 0/1 Aprotein has optimal function inits primarystructure. Allproteinscarryoutcellularfunctionswhentheyhaveobtained theirfinalquaternarystructure. Ionicbondsbetweenthebackbonegroupsofaminoacidsstabili zeaprotein'stertiarystructure. Thehydrophobiceffectprimarilycontributestoasinglesubun

BIOCHEM 785 2ndOA (1)Questions and ANSWERS

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Rationale BEST EXAM SOLUTION GUARANTEED

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itprotein'stertiarystructure. Correctanswer Thehydrophobiceffectprimarilycontributestoasinglesubunitprotein'st ertiarystructure. Feedback ThecorrectanswerisD.Thehydrophobiceffectdrivestheformationofthecoreofaprotein, whichisthepredominant contributing factor totheprotein's tertiarystructure.  Glutamine is located at position 13, of a protein, and forms ahydrogenbondwiththeaminoacidatposition89.Whatwould happeniftheaminoacidat position 89wasmutatedtoalanine?

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BIOCHEM 785 2ndOA (1)Questions and ANSWERS

Rationale BEST EXAM SOLUTION GUARANTEED